refactor(ui): migrate Manage Ownership page from antd to Alchemy components CAT-1563

[annadoesdesign]

Before:

After:

Summary

• Migrates the Manage Ownership settings page from antd components to Alchemy design system components
• Moves the Create button to the page header (right-aligned) to match the Users & Groups page pattern
• Replaces antd Table, Dropdown/Menu, Form/Input, Pagination, notification/message with Alchemy equivalents (Table, Menu, Input, TextArea, Pagination, toast)
• Adds Alchemy EmptyState component when no ownership types exist
• Removes all styled-component wrappers on top of Alchemy components
• Deletes NameColumn.tsx and DescriptionColumn.tsx (inlined directly in table columns)
• Net reduction of ~176 lines of code

Test plan

• Cypress test updated to match new Alchemy component selectors (v2_manage_ownership.js)
• Verify create ownership type modal opens and saves correctly
• Verify edit ownership type modal pre-fills and updates correctly
• Verify delete ownership type works from three-dot menu
• Verify search filters ownership types
• Verify pagination works when >10 ownership types exist
• Verify empty state shows when no ownership types match search

Made with Cursor

[github-actions]

Linear: CAT-1564

[alwaysmeticulous]

✅ Meticulous spotted visual differences in 2 of 1494 screens tested, but all differences have already been approved: view differences detected.

Meticulous evaluated ~9 hours of user flows against your PR.

_{Last updated for commit f68098e. This comment will update as new commits are pushed.}

[codecov]

Bundle Report

Changes will decrease total bundle size by 2.11kB (-0.01%) ⬇️. This is within the configured threshold ✅

Detailed changes

Bundle name	Size	Change
datahub-react-web-esm	23.78MB	-2.11kB (-0.01%) ⬇️

Affected Assets, Files, and Routes:

view changes for bundle: datahub-react-web-esm

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
assets/index-*.js	-2.11kB	13.61MB	-0.02%

Files in assets/index-*.js:

• ./src/app/entityV2/ownership/OwnershipList.tsx → Total Size: 2.48kB

• ./src/app/entityV2/ownership/table/OwnershipTable.tsx → Total Size: 1.13kB

• ./src/app/entityV2/ownership/OwnershipBuilderModal.tsx → Total Size: 3.65kB

• ./src/app/entityV2/ownership/table/ActionsColumn.tsx → Total Size: 1.42kB

• ./src/app/entityV2/ownership/ManageOwnership.tsx → Total Size: 1.4kB

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

📢 Thoughts on this report? Let us know!

[benjiaming]

It's a good practice to use a class with <b> to add semantic meaning. Or, if this just meant to make it boldface, we should use font-weight instead. If we want to to specify importance, we should use <strong>.

https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/b